John pbentice



J. PRBNTIGE. AUTOMATIC BXTINGUISHER FOR GAS BURNERS. No. 370,816.

(No Model.)

Patented Oct. 4, l8-8'7.

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UNITED STATES PATENT OFFICE.

JOHN PRENTICE, OF NEW YORK, N. Y.

vAUTOMATIC EXTINGUISHER FOR GAS-BURNERS.

SPECIFICATION forming part of Letters Patent No. 370,816, dated October 4, 1887.

Application tiled September 13, 1886. Serial No. 213,377. (No model.)

To all whom it may concern.-

Be it known that I, JOHN PRENTICE, of the city and State of New York, have invented an Improvement in Automatic Extinguishers for Gas-Burners, of which the following is a speciication.

Persons unacquainted with the use of gaslights frequently blow out the dame, and the continued escape of the gas often causes loss of life.

Gas-burners have been made with a windwlieel around the burner-tip connected with a cock,so that the wheel is partially turned by the action of the air in any attempt to blow out the flame.

My invention relates to improvements in this class of gas-burners by which `the parts are made to act with less friction and in a more reliable manner.

In the drawings, Figure 1 is avertical section 'showing a burner and the wind-wheel and cock. Fig. 2 is a plan View with tube for the tip in section, and Fig. Sis an inverted sectional plan at the line x a", Fig. 1.

I make use of the gas-tube a, provided with a perforated cap and stop, 7, a tube or section, 5, provided with a perforated base, and a notched flange surrounding said base and carrying wings h, and the burner-tip, the perforated base and cap being connected by a pivot, 2. The perforated cap 3 of the tube a and the perforated base 4 vof the tube 5 form a cut-off, and when the holes through these parts 3 and 4 are in line with each ,other the gas will pass through to the tip, and when the holes do not coincide the gas is cut off. The surfaces ofthe parts 3 and 4 are either flat or conical.

Around the tube 5 is a wind-wheel, h, the blades of which are either straight, as at 9, or

curved, as at 10, or diagonal, as at 11, for the air'to act upon when an attempt is made to blow out the gas.

If the stop 7 is placed so that it is in the middle ofthe notch when the iiame is turned full on, then the gas will be shut off by the windwheel turning in either direction, and it will be nearly impossible to blow without turning the windwheel and shutting off the gas. If the blades of the wind-wheel are curved or conical, as usual in wind-wheels, then the wheel will only be turned in one direction by the wind.

The blades of the wind-wheel may be all alike and of 'either of the forms set forth or of 55 any other form adapted to theobject. I claim as my invention- The combination of the tube a, provided with a perforated cap and stop 7, the tube or section 5, provided with the perforated base, and the notched flange surrounding said base and carrying the wings h and the burner-tip, the perforated base and cap being connected by the pivot, substantially as specified.

Signed by me this 8th day of September, 1886.

` JOHN PRENTICE.

Witnesses:

GEO. T.v PINOKNEY, WILLIAM G. MoT'I. 

